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CVE-2026-5269

In Ciena's Navigator Network Control Suite (NCS) and Manage Control Plan (MCP), there are hidden system accounts used for internal software operations. Some of these accounts have default passwords that may be predictable. While these accounts have very limited permissions on their own, an attacker could combine an attack using one of these accounts with other potential weaknesses to launch a more significant attack, possibly leading to escalation of privilege on the system.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:955e2f771913b6a5201dc627afa2facb26f230ca8eb8eb0a118c06878c950914
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 3 assertions

{"defaultStatus":"unaffected","product":"Navigator NCS","vendor":"CIENA","versions":[{"status":"affected","version":"8.1"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:282b19f00a48a4d6b0339ba6e995e437b4c1bea73395c13aa5a731daa7e83833 · sha256:9e95f0a1852d8ba7… · /containers/cna/affected/0

{"defaultStatus":"unaffected","product":"Planner Plus OnPrem","vendor":"CIENA","versions":[{"status":"affected","version":"<= 4.1"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:282b19f00a48a4d6b0339ba6e995e437b4c1bea73395c13aa5a731daa7e83833 · sha256:9e95f0a1852d8ba7… · /containers/cna/affected/2

{"defaultStatus":"unaffected","product":"MCP","vendor":"CIENA","versions":[{"status":"affected","version":"<= 8.0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:282b19f00a48a4d6b0339ba6e995e437b4c1bea73395c13aa5a731daa7e83833 · sha256:9e95f0a1852d8ba7… · /containers/cna/affected/1

Affected products and versions

3 source assertions
{"defaultStatus":"unaffected","product":"Navigator NCS","vendor":"CIENA","versions":[{"status":"affected","version":"8.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:282b19f00a48a4d6b0339ba6e995e437b4c1bea73395c13aa5a731daa7e83833 · sha256:9e95f0a1852d8ba7… · /containers/cna/affected/0
{"defaultStatus":"unaffected","product":"Planner Plus OnPrem","vendor":"CIENA","versions":[{"status":"affected","version":"<= 4.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:282b19f00a48a4d6b0339ba6e995e437b4c1bea73395c13aa5a731daa7e83833 · sha256:9e95f0a1852d8ba7… · /containers/cna/affected/2
{"defaultStatus":"unaffected","product":"MCP","vendor":"CIENA","versions":[{"status":"affected","version":"<= 8.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:282b19f00a48a4d6b0339ba6e995e437b4c1bea73395c13aa5a731daa7e83833 · sha256:9e95f0a1852d8ba7… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:282b19f00a48a4d6b0339ba6e995e437b4c1bea73395c13aa5a731daa7e83833 · sha256:9e95f0a1852d8ba7… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-1393","description":"CWE-1393 Use of default password","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:282b19f00a48a4d6b0339ba6e995e437b4c1bea73395c13aa5a731daa7e83833 · sha256:9e95f0a1852d8ba7… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://www.ciena.com/product-security"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:282b19f00a48a4d6b0339ba6e995e437b4c1bea73395c13aa5a731daa7e83833 · sha256:9e95f0a1852d8ba7… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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